Hi, I've finally registered so I can post messages in th right forum. My 71k5 has a rebuilt 327 and a turbo 350 tranny. I've got a bad leak of tranny fluid from the speedometer cable that connects to the x-case. The odd thing is I have some kind of adaptor between the cable and the x-case that is doing all the leaking. Does anyone know what this is? I'm guessing it's some kind of reducer to compensate for the different tranny and the stock speedometer? I've got a picture here..